Wrench.



829,672. PATENTED AUG. 28, 1906.

G. W. ROWELL.

WRENCH.

APPLICATION FILED PEB.26,1906.

WITNESSES.

Ozag 7 (MURQMXL.

flttorney GEORGE W. HOWELL, OF PORTALES, TERRITORY OF NEW MEXICO.

WRENCH- Specification of Letters Patent.

Patented Aug. 28, 1906.

Application filed February 26.1906. Serial No. 302,942-

To all whom it may concern: j

Be it known that I, GEORGE W. RownLL,

is adapted to engage. To swing these liners as desired, the handle 9 is first screwed back citizen of the United States, and a resident of l enough to release the liners and they are Portales, in the county of Roosevelt and Territory of New Mexico, have invented a new and Improved Wrench, of which the following is a specification.

My invention relates to that type of wrench commonly known as a monkeywrenc in which the distance between the jaws is controlled by a screw, but differs from the usual monkey-wrench in that the distance between the jaws is constant when the wrench is in operative form; and my invention consists in forming this type of wrench with jaws inpairs; and it consists, turth er, in mounting filling-pieces or liners on the shank of the wrench, which by their position will determine the size of the object to which the wrench is adapted.

In the drawings, which form a part of this application, Figure 1 is a view of the wrench. Fig. 2 is a view of the stem or shank and the rigid jaws. Fig. 3 is aview of a modified form of liner. Fig. 4 is an end view of the movable jaw, taken from the top in Fig. 1.

Similar reference characters refer .to like parts throughout the several views.

The double jaw 1 of the wrench is rigidly attached to the stem or shank 2. On this shank is slidable the movable jaw 7. The shank has a squared portion which is adapted to pass into the hole 8 in the movable jaw 7 and prevent its turning on the shank. The shank below this squared portion is reduced in size, as at 4, and the lower end is threaded, as at 5. The handle 9 is adapted to turn on the part 1, and the nut 10 at its lower end screws onto the thread 5. Thus turning the handle will cause the movable jaws 7 to approach or recede from the fixed jaws 1.

Mounted on the part 2 of the shank between the jaws 1 and 7 are the filling-pieces or liners 6, which areadapted to be swung to extend in either direction parallel with the aws. main body of liners leave openings, and the opening between the jaws and liners or between difierent groups of liners determines the size of the nut or other object the wrench then positioned, the handle being then screwed up to lock the liners in position. The dotted lines in Fig. 1 show several of the liners next to the movable jaw swung to the left to adapt the wrench for the nut shown in dotted position.

To cause the liners to lie parallel and to move together, they may be provided with projections 12 and notches 13, which will serve to lock them together. The handle must be unscrewed slightly farther to permit them to be moved when this construction is employed.

It will readily be seen that by swinging a number of the liners from the middle of the group over to the opposite side a wrench with three openings is produced and that any desired combination of openings can be produced.

Having now explained my invention, what I desire to secure by Letters Patent is- 1. In a wrench, the combination of a shank, a rigid double j-aw at one end of the same, a movable jaw slidably mounted on the shank intermediate its ends, a handle revoluble on said shank and adapted to position the movable jaw, and a plurality of liners revolubly mounted between the jaws and adapted to be secured in position by the handle.

2. In a wrench, the combination of a shank, a rigid double jaw at one end of the same, the opposite end being screw-threaded, a handle revoluble on said shank and having a nut at one end adapted to engage the threads on the shank, a movable jaw slidably mounted on the shank intermediate the handle and rigid jaw, and thin flat plates having a hole at one end and adapted to swing and slide on the shank, the plates being adapted to be positioned to form spaces for the reception of the article to be operated upon by Those that are swung away from the the wrench, and the handle being adapted to lock the thin plates in position. I

3. In a wrench, the combination of a shank, a rigid jaw at one end of the same, a

movable jaw slidably mounted on the shank I00 able jaw, and a intermediate the ends, a handle revoluble on said shank and adapted to position the movplurality of liners mounted on the shank between the rigid and movable jaws and adapted to be secured in position by the handle, said liners being provided with means to hold each other in parallel position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' GEORGE W. ROWELL.

Witnesses:

B. C. GAITHER, S. S. STONE. 

